Once the data is stored in the database as XML, the data can be queried very efficiently, as the XML is not parsed at runtime for query evaluation. 在数据库中以XML格式存储数据之后,可以非常高效地查询该数据,因为在运行时无需执行XML解析来实现查询计算。
The history data can be stored automatically and real time. Moreover, the developing trend of discharge parameters can be queried and analyzed for the condition evaluation of insulation. 系统还可以实时自动存储放电数据,查询放电参数的变化趋势,进行绝缘状态评估。